Saw set and jointer.



J. W. FORREST. SAW SET AND JOINTER. APPLIOATION FILED FEB.17,'1909.

972,354, Patented 0ct11,1910.

UNITED STATES PATENT oFFIoE.

JOHN W. FORREST, OF BLYTHEVILLE, ARKANSAS.

SAW SET AND JOINTER.

To all whom it may concern:

Be it known that I, JOHN WV. Fonnns'r, a citizen of the United States,residing at Blytheville, in the county of Mississippi and State ofArkansas, have invented new and useful Improvements in Saw Sets and Jointers, of which the following is a specification.

This invention relates to saw sets and jointers, the object of theinvention being to provide a simple and reliable device to facilitatethe swaging or setting and jointing of cross cut saws.

The construction of the device hereinafter described is such that eachand every tooth of any cross cut saw may be accurately set either beforeor after filing. Furthermore, any desired degree of pitch may beimparted to the saw teeth according to the work to be performed by thesaw.

WVith the above and other objects in View, the nature of which will morefully appear as the description proceeds, the invention consists in thenovel construction, combination and arrangement of parts as herein fullydescribed, illustrated and claimed.

In the accompanying drawings :Figure 1 is a perspective view of a sawset and jointing device constructed in accordance with the presentinvention. Fig. 2 is a similar view taken from a different position.Fig. 3 is a cross section taken in line with the shank of the adjustablejointing gage. Fig. 4 is a cross section taken in line with one of theswage bar guides.

1 designates the frame or body of the device which is shown forconvenience in the form of a rectangular or oblong block provided alongone edge with flanges 2 which extend to one side of the frame and areset perpendicularly to such side, a central space 3 being left betweenthe flanged portion of the frame to provide a recess in which isarranged a jointing gage plate at, the same being provided with a slot 5through which the saw teeth are adapted to project to enable the same tobe filed off down to the plane of the outer surface of the gage platewhile the adjacent teeth at each side thereof rest against the bottom ofthe flanges 2, thus enabling all of the teeth of the saw to beaccurately filed or jointed either before or after the swagingoperation.

In order to render the gage plate 1 adjustable, said plate is providedat one side with a slotted shank 6 which is led into a correspondingrecess 7 in one side of the Specification of Letters Patent.

Application filed February 17, 1909.

Patented Oct. 11, 1910. Serial No. 478,364.

frame or body 1 as shown in Figs. 1 and 3, said shank receiving throughthe slot thereof, a binding screw 8 which is threaded into the frame orblock 1 and adapted to clamp the shank 6 and securely hold the gageplate a. at any point of adjustment.

Extending along one edge of the body or frame 1 is a swage bar 9 havingopenings to receive a pair of swage bar guides 10 in the form of boltsor pins extending laterally from one edge of the frame 1 as shown inFigs. 1 and 1, said guides being threaded to receive nuts 11 forlimiting the outward movement of the swage bar 9 relatively to theframe 1. Centrally the swage bar 9 is provided with an oppositelyextending impact head 12 adapted to be struck by a ham mer or mallet orsimilar implement in the operation of swaging the teeth of the saw. Onits inner edge the swage bar 9 is provided with an inwardly extendingswage lug 13 having an inclined face 14 as shown in Fig. 3, while theadjacent portion of the edge of the frame 1 is correspondingly beveledor inclined as shown at 15 whereby the inclined face of the swage lug isadapted to deflect the saw tooth laterally and impart the necessarypitch thereto.

In order to provide for swaging the teeth to a greater or lesser degreeor in other words, regulating the lateral pitch of the teeth, adjustableswaging gages 16 in the form of plates as shown in Fig. 1 are secured toone side of the frame or body 1 by means of screws 17 so that byloosening said screws, any desired distance may be left between theinner surfaces of said plates and the adjacent face of the frame orbody 1. It will be understood that in the swaging operation, the teethof the saw are introduced between the swage bar 9 and the frame or body1 as indicated by dotted lines in Fig. 1 so that the extremities ofcertain teeth will bear against the inner faces of the plates 16.Therefore, by adjusting said plates toward and away from the body orframe 1, the

operator, the saw being held by any larger clamp or rack, the devicehereinabove described being held in proper relation to the teeth of thefile with the aid of one hand while the other hand is left free tomanipulate the hammer.

I claim A device of the class described, comprising a body having spacedfaces disposed in a common plane and an intermediate face arranged at aninclination to the plane of the first mentioned faces, a swage bar extending along one edge of the body and having spaced faces disposed in acommon plane and opposite to and parallel with the first mentioned facesof the body and bar to receive saw teeth between the same and bar, a lugprojecting from the inner face of the bar and inclined parallel to thesaid intermediate face of the body for setting teeth of the saw, membersprojecting laterally from the body across the saw receiving spacebetween the latter and bar and extending through the bar, and adjustablestops on the outer ends of the members for limiting the outward movementof the bar, said members forming sole supporting means for the bar andforming guides on which the bar moves back and forth in the swagingoperation.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN W. FORREST.

Witnesses:

M. ABBOTT, CHAS. L. BRIDGES.

